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  1. Qt
  2. QTBUG-109340

[REG: 5->6] Video playback significantly slower than in Qt 5 on i.MX 6 devices

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    • Linux/Yocto

    Description

      Tested with Apalis i.MX6 board. Videos in at least h264 format seem to have hard time running in Qt 6, but same video on the same board with Qt 5 plays much better. This happens on EGLFS.

      Can be tested with this:
      http://linode.boundarydevices.com/videos/Hobbit-1080p.mov

      However, on the same device with Weston, the video plays nicely through GStreamer:

      gst-launch-1.0 filesrc location=Hobbit-1080p.mov ! qtdemux name=demuxer demuxer. ! queue ! aacparse ! decodebin ! audioconvert ! audioresample ! autoaudiosink demuxer. ! queue ! h264parse ! imxvpudec_h264 ! waylandsink

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          Task - A task that needs to be done. QTBUG-95819 Improve video performance on iMX6 platforms with new backend

          • P2: Important - Urgent, should be fixed, but will not stop the release.
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              jarihelaakoski Jari Helaakoski
              poikelin Joni Poikelin
              Veli-Pekka Heinonen Veli-Pekka Heinonen
              Tommi Mänttäri Tommi Mänttäri
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                Resolved:

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